diff --git a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/U b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/U
index f5e2ba0301de694602c496a6070faad3b4426951..9956821b4e9af2a31ead410d25c99e899aae3910 100644
--- a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/U
+++ b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/U
@@ -27,13 +27,6 @@ boundaryField
         value           $internalField;
     }
 
-    top
-    {
-        type            inletOutlet;
-        inletValue      $internalField;
-        value           $internalField;
-    }
-
     burner
     {
         type            flowRateInletVelocity;
@@ -41,7 +34,7 @@ boundaryField
         value           uniform (0 0 0);
     }
 
-    sides
+    "(top|sides)"
     {
         type            pressureInletOutletVelocity;
         phi             phi;
diff --git a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/p_rgh b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/p_rgh
index f0770e8bd9f126c2b835c19726d70b454ea2a2d4..8beb741369d881141ca13d83aab6e49d9eff2de8 100644
--- a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/p_rgh
+++ b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/p_rgh
@@ -27,19 +27,13 @@ boundaryField
         value           $internalField;
     }
 
-    top
-    {
-        type            zeroGradient;
-        value           $internalField;
-    }
-
     burner
     {
         type            fixedFluxPressure;
         value           $internalField;
     }
 
-    sides
+    "(top|sides)"
     {
         type            totalPressure;
         U               U;
diff --git a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/hRef b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/hRef
new file mode 100644
index 0000000000000000000000000000000000000000..9bd140541c3dcc8043dd7b7d1f1542cd9181ad31
--- /dev/null
+++ b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/hRef
@@ -0,0 +1,21 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       uniformDimensionedScalarField;
+    location    "constant";
+    object      hRef;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 1 0 0 0 0 0];
+value           4.2;
+
+// ************************************************************************* //
diff --git a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSchemes b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSchemes
index f28d6fcd166d37ce00d91ac75a2659dc87f5ab57..d28d02ca9c52a35b605b9e83322c0960923af5bb 100644
--- a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSchemes
+++ b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSchemes
@@ -28,9 +28,10 @@ gradSchemes
 divSchemes
 {
     default         none;
-    div(phi,U)      Gauss limitedLinear 1;
+    div(phi,U)      Gauss LUST grad(U);
+    div(phi,K)      Gauss limitedLinear 1;
     div(phi,k)      Gauss limitedLinear 1;
-    div(phi,Yi_h)  Gauss multivariateSelection
+    div(phi,Yi_h)   Gauss multivariateSelection
     {
         O2              linearUpwind grad(O2);
         N2              linearUpwind grad(N2);
@@ -40,7 +41,6 @@ divSchemes
         h               linearUpwind grad(h);
     };
     div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
-    div(phi,K)          Gauss limitedLinear 1;
     div(Ji,Ii_h)        Gauss upwind;
 }
 
diff --git a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSolution b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSolution
index 47cd5fb2fe1f11542b76442b6f45d5905508e80e..5691a3dbd97c284dbe98cbc74cdcdf9f9892cd7d 100644
--- a/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSolution
+++ b/tutorials/combustion/fireFoam/les/oppositeBurningPanels/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    rho
+    "rho.*"
     {
         solver          PCG;
         preconditioner  DIC;
@@ -25,12 +25,6 @@ solvers
         relTol          0;
     };
 
-    "(rho)Final"
-    {
-        $rho;
-        relTol          0;
-    }
-
     p_rgh
     {
         solver              GAMG;
@@ -39,18 +33,16 @@ solvers
         smoother            GaussSeidel;
         cacheAgglomeration  true;
         nCellsInCoarsestLevel   10;
-        agglomerator    faceAreaPair;
-        mergeLevels     1;
+        agglomerator        faceAreaPair;
+        mergeLevels         1;
     };
 
     p_rghFinal
     {
         $p_rgh;
-        tolerance           1e-6;
         relTol              0;
     };
 
-
     "(U|Yi|k|h|omega)"
     {
         solver          PBiCG;
@@ -63,11 +55,9 @@ solvers
     "(U|Yi|k|h|omega)Final"
     {
         $U;
-        tolerance       1e-6;
         relTol          0;
     };
 
-
     Ii
     {
         solver                  GAMG;
@@ -90,7 +80,6 @@ solvers
         tolerance       1e-04;
         relTol          0;
     }
-
 }
 
 PIMPLE
@@ -105,9 +94,9 @@ relaxationFactors
 {
     equations
     {
-        "(U|k).*"                   1;
-        "(C3H8|O2|H2O|CO2|h).*"     1;
+        ".*"            1;
     }
 }
 
+
 // ************************************************************************* //